430 THE BREEDS OF LIVE-STOCK 
Duroc-Jersey Swine Breeders’ Association was organized 
in 1883, but it was not incorporated until 1888. The first 
herd-book was published in 1885, and forty-one volumes 
have been issued since, containing 108,000 registrations. 
The National Duroc-Jersey Record Association was organ- 
ized in 1891, and published its first herd-book in 1893. It 
has published forty-eight volumes to date, containing 
314,000 registrations. In Canada, Duroc-Jerseys are re- 
corded in the Dominion Swine Breeders’ Record. 
Literature. —‘“‘The Duroc Bulletin” is a semi-monthly paper 
published at Peoria, Illinois, in the interests of Duroc-Jersey swine. 
CHESTER-WHITE SwINE. Fig. 89. 
By G. E. Day 
523. The Chester-White is an American breed of swine 
of the fat- or lard-hog type, but possessing good bacon 
qualities. It ranks with the three other great lard 
breeds. 
524. History. — Most authorities on this breed recog- 
nize three strains of Chester-White swine, the origin of 
which may be briefly summed as follows: 
(1) Lhe original Chester-White founded in Chester 
county, Pennsylvania, whence the name. Large, white 
pigs were common in Chester county many years ago. 
They were taken there by the earliest settlers, although 
just where these original pigs came from is not altogether 
clear. About the year 1818, Captain James Jeffries im- 
ported from England a pair of white pigs, which are spoken 
of as Bedfordshire pigs, and as Cumberland pigs. Captain 
Jeffries used the boar on the native white pigs of the dis- 
